Once you enter the sharing page, you can choose the sharing level that best suits you. Under the sharing level you selected, you will see an interface where you can add groups and non-group users. When you share a worksheet with multiple people, you cannot adjust the entry settings individually for each person. Instead, everyone you share with will have the same entry settings. However, if you share with a group, you can set unique entry settings for each group (to do this, click the gear icon next to the group).